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Anit [1.1K]
4 years ago
15

If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?

Physics
2 answers:
Pie4 years ago
6 0

dont answer 8.4, its wrong

Plato

kvasek [131]4 years ago
4 0
Given: 280 watts power a day
            
Unknown: KwH=?in 30 days
Solution: 280 watt-hours per day/1000x30 days
               .28 x 30=n
Answer:8.4 kwh
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